JP2009230728A - Alarm device and its control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alarm device and its control method which eliminates misunderstanding that the alarm device breaks down without making a user of the alarm device feel displeasure, suspiciousness, insecurity, etc., further displays useful information for a manager, and enables an on-site checker such as the user to easily check a ringing cause at any time. <P>SOLUTION: The alarm device is provided with: a detection part which individually detects a plurality of abnormal states; a display part which has a plurality of alarm display elements which light up or blink corresponding to the plurality of abnormal states, and a power display element which lights up or blinks corresponding to a conducted state; and a control part which displays a detection result on the display part based on the detection result of the detection part, and the display part is controlled so as to execute sequential display in which all the display elements light up or blink in a predetermined order corresponding to a past state when a history check operation for checking the past state is executed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an alarm device that detects a plurality of abnormal states and issues an alarm, and a control method thereof.

  An alarm device that detects an abnormal state such as gas leakage, generation of carbon monoxide, or smoke due to a fire and issues an alarm is installed in a kitchen, a bedroom, a staircase, etc. in a general house. Here, when the power is first turned on after the alarm device is installed at a predetermined position, a circuit check mode for initially checking the internal circuit of the alarm device is executed for a predetermined time (for example, 60 seconds). When the circuit check is completed, the alarm device shifts to a detection mode in which an abnormal state can be detected.

  In the detection mode, for example, when a gas leak occurs (that is, when a gas concentration of a predetermined value or more is detected), the alarm device turns on a display element (for example, a red LED) corresponding to the gas leak and at the same time from the speaker. A voice alarm such as “Is gas leaking?” Is issued to alert the user.

  When the user closes the main gas valve or ventilates the alarm, the red LED is turned off and the sound alarm is stopped when the gas concentration in the living room falls below a predetermined value. Thereafter, the alarm device performs history display (ringing cause display) indicating that a gas leak alarm has been issued, in order to facilitate the convenience of a recovery operation or the like by an administrator (gas supplier or the like). As an example of this ringing cause display, there is one that causes the green LED, which is a power supply display element, to perform a lighting display of an unusual pattern according to the ringing cause for 3 days from when the alarm stops (for example, , See Patent Document 1).

JP 2001-216581 A (paragraph 0011)

  However, even if the ringing cause display represented by the above-mentioned Patent Document 1 is useful information for the administrator, the user of the alarm device does not necessarily grasp the meaning of the ringing cause display. Therefore, even if the gas concentration in the room drops below a predetermined value due to the user's appropriate processing and the alarm is stopped, the alarm device display section displays the cause of the ringing as an unusual operation. In this case, there is a problem that a user who does not know the meaning of the ringing cause display has an uncomfortable feeling, a suspicious feeling, an uneasy feeling, etc. with respect to the alarm device.

  Even if the alarm device is configured to display the cause of ringing on the display only when a special operation such as a long press on a button is performed, an alarm is displayed when a long press operation is made meaningless in a normal state. The display pattern on the display unit is completely different from the case where the long press operation is performed after the alarm is stopped. Therefore, the user still has discomfort, suspicion, anxiety, etc. with respect to the alarm device, and does not lead to a fundamental solution.

  Furthermore, when the ringing cause display is displayed due to malfunction, misinformation, or the like, the manager may not need to rush to the site. For example, the alarm may be triggered when the detection unit of the alarm device reacts with alcohol components contained in seasonings or transient carbon monoxide that is generated when a cold cookware is heated with a gas stove. If it is clear and can be removed immediately, and there is no problem with safety, the user can fully cope with it. However, if the meaning of the ringing cause display is not well known as described above, the user misunderstands that the alarm device has failed, and makes an originally unnecessary inquiry, repair request, replacement request, etc. to the administrator. It will be. As described above, when the meaning of the ringing cause display is not known to the user, there is a problem that both the user and the administrator have to pay unnecessary labor.

The present invention has been made in view of the above problems, and does not cause the user of the alarm device to feel uncomfortable, suspicious, anxious, etc., and further eliminates the misunderstanding that the alarm device has failed. With the goal.
It is another object of the present invention to provide an alarm device that displays useful information for the administrator and allows a site checker such as a user to easily check the cause of the ringing at any time, and a control method thereof.

  A characteristic configuration of the alarm device according to the present invention is an alarm device that detects a plurality of abnormal states and issues an alarm, and includes a detection unit that individually detects the plurality of abnormal states, and the plurality of abnormal states. A plurality of alarm display elements that are lit or flashing correspondingly, a display unit that has a power supply display element that is lit or flashing corresponding to an energized state, and the detection result based on the detection result of the detection unit And when the history confirmation operation for confirming the past state is executed, the control unit turns on all the display elements in a predetermined order corresponding to the past state. The display unit is controlled so as to execute blinking sequential display.

For example, when the operator of the alarm device performs a history confirmation operation for confirming a past state in the alarm device, a ringing cause display corresponding to the history is performed on the display unit.
In the alarm device of this configuration, in this ringing cause display, all the display elements are lit or blinked in a predetermined order. That is, it is assumed that the ringing cause display always performs a predetermined operation. For this reason, the operator can understand the ringing cause display as one of the operations that the alarm device normally performs, and the alarm device does not feel uncomfortable, suspicious, anxious or the like.
Also, the ringing cause display is to perform sequential display in which all the display elements are turned on or blinking in a predetermined order corresponding to the past state, for example, when there is an alarm history in the alarm device, An operator or an administrator can easily and accurately grasp alarms issued in the past.

  In the alarm device according to the present invention, it is preferable that the past state includes the plurality of abnormal states and a normal state in which the plurality of abnormal states are not detected.

  In the alarm device of this configuration, as a past state, not only a plurality of abnormal states but also a normal state in which a plurality of abnormal states are not detected, all display elements are lit or blinked in a predetermined order from the corresponding display elements. Since the sequential display is executed, the past abnormal state and normal state can be easily confirmed.

  In the alarm device according to the present invention, it is preferable that the sequential display is executed with an alarm display element corresponding to an abnormal state detected by the detection unit most recently as a head.

  In the alarm device of this configuration, since the display is sequentially performed from the alarm display element corresponding to the abnormal state detected by the detection unit most recently, the contents of the alarm history can be easily understood.

  In the alarm device according to the present invention, the control unit performs a circuit check for checking the soundness of the circuit including the detection unit and the display unit at predetermined intervals, and the history check operation is performed by the circuit check. It also serves as a circuit check confirmation operation for confirming the result, and it is preferable that the operator confirms that the circuit is healthy by performing the sequential display.

In the case of the alarm device of this configuration, the operator of the alarm device can also execute a circuit check confirmation operation for confirming the result of the circuit check only by executing the history check operation. Thus, by combining the history confirmation operation and the circuit check confirmation operation, it is possible to confirm that the alarm device is operating normally and has performed a certain history operation.
In addition, since the operator can confirm that the circuit is sound because the sequential display is executed on the display unit, it is easy to visually recognize the result of the circuit check.

  In the alarm device according to the present invention, when the history check operation is executed, the result of the circuit check that is first executed by the control unit after the circuit check check operation that is executed along with the history check operation. It is preferable that the sequential display is executed based on the above.

  The alarm device of the present configuration can be applied to an apparatus in which a history check operation is executed by turning off / connecting a power source (for example, by inserting / removing a power plug). When the alarm device is turned off once and then connected, the alarm device performs an initial operation, and at the same time, a circuit check confirmation operation is also executed. Therefore, if the sequential display is executed based on the result of the circuit check first executed by the control unit after the circuit check confirmation operation, the time required for history confirmation and circuit check result confirmation is shortened. Can do.

  In the alarm device according to the present invention, the alarm device includes a storage unit that stores a result of the circuit check executed at the predetermined interval, and the latest circuit check stored in the storage unit when the history check operation is executed. It is preferable that the sequential display is executed based on the result of the above.

  The alarm device of this configuration can be applied to a device in which a history check operation is executed by a switch operation while the power supply is connected. The alarm device performs a circuit check for checking the soundness of the circuit at a predetermined interval. The result of this circuit check is stored in the storage unit. Therefore, when the operator performs a history check operation, if the sequential display is executed based on the latest circuit check result stored in the storage unit, the history check and the circuit check result confirmation The time required can be minimized.

  In the alarm device according to the present invention, it is preferable that the alarm device includes a speaker that informs by voice that the circuit is sound when the sequential display is executed.

  With the alarm device of this configuration, when a sequential display indicating that the circuit is sound is executed, a message indicating that the circuit is sound can be output from the speaker. At the same time, the soundness of the speaker can be understood more reliably and easily.

  In the alarm device according to the present invention, the detection unit preferably includes two or more of a fire detection unit, a gas detection unit, and a CO detection unit.

  If it is an alarm device of this configuration, a practical and useful alarm device can be realized particularly as a gas fire alarm device or a fire alarm device.

  A characteristic configuration of the control method of the alarm device according to the present invention is a control method of the alarm device that detects a plurality of abnormal states and issues an alarm, and the alarm device individually detects the plurality of abnormal states. And a display unit having a plurality of alarm display elements that are lit or blinking corresponding to the plurality of abnormal states, and a power supply display element that is lit or blinking corresponding to the energized state. When a history confirmation operation for confirmation is performed, sequential display in which all display elements are lit or blinked in a predetermined order corresponding to the past state is performed.

For example, when the operator of the alarm device performs a history confirmation operation for confirming a past state in the alarm device, a ringing cause display corresponding to the history is performed on the display unit.
In the control method of the alarm device of this configuration, in this ringing cause display, all the display elements are lit or blinked in a predetermined order. That is, it is assumed that the ringing cause display always performs a predetermined operation. For this reason, the operator can understand the ringing cause display as one of the operations that the alarm device normally performs, and the alarm device does not feel uncomfortable, suspicious, anxious or the like.
Also, the ringing cause display is to perform sequential display in which all the display elements are turned on or blinking in a predetermined order corresponding to the past state, for example, when there is an alarm history in the alarm device, An operator or an administrator can easily and accurately grasp alarms issued in the past.

  Hereinafter, an embodiment relating to an alarm device of the present invention will be described with reference to the drawings. In addition, this invention is not limited to the structure described in embodiment and drawing demonstrated below, The structure equivalent to this invention is also included.

[First Embodiment]
FIG. 1 is a plan view showing a wall-mounted gas fire alarm device 100 according to the first embodiment, which is an example of the alarm device according to the present invention. FIG. 2 is a block diagram showing a configuration of the gas fire alarm device 100 according to the first embodiment.

  The gas fire alarm device 100 of the present embodiment is configured as a combined gas fire alarm device capable of detecting “fire occurrence”, “gas leak”, and “carbon monoxide (CO) generation” as abnormal states. Is done. The gas fire alarm device 100 includes a fire detection unit 1, a gas detection unit 2, and a CO detection unit 3 as detection units. The fire detection unit 1 can employ, for example, a temperature sensor that detects heat from a fire, a light scattering smoke sensor that detects smoke generated by a fire, and the like. The gas detection unit 2 and the CO detection unit 3 are, for example, a semiconductor type gas sensor including a metal oxide semiconductor (sensitive unit) having sensitivity to each detection target gas, and each detection target gas. An infrared absorption gas sensor or the like that irradiates infrared rays and measures the absorption wavelength at that time can be employed.

  Each detection signal from the fire detection unit 1, gas detection unit 2, or CO detection unit 3 is appropriately subjected to signal processing through an amplifier, a filter, an A / D converter, etc., as necessary. Sent. The control unit 4 is configured as, for example, a CPU built in the gas fire alarm device 100 or a computer that controls the gas fire alarm device 100 from the outside.

  The control unit 4 compares the detection result received from the fire detection unit 1, the gas detection unit 2, or the CO detection unit 3 with a predetermined threshold value, for example, and compares the detection result with the fire alarm display element 5, the gas alarm display element 6, or Each is displayed on the CO alarm display element 7. In this embodiment, the fire alarm display element 5 is configured as a red LED, the gas alarm display element 6 is configured as a red LED, and the CO alarm display element 7 is configured as a yellow LED. Further, the power supply display element 9 that is turned on when the alarm device 100 is connected to the power supply 8 and is energized is configured as a green LED. The fire alarm display element 5, the gas alarm display element 6, the CO alarm display element 7, and the power supply display element 9 form a display unit 10 of the gas fire alarm device 100.

Next, the determination of the abnormal state performed by the control unit 4 will be described.
The control unit 4 has a predetermined threshold value for determining each abnormal state. Or it is comprised so that the said threshold value stored in the storage part 12 mentioned later can be recognized. When a detection signal (that is, a measurement value) from each detection unit is transmitted to the control unit 4, the control unit 4 compares the measurement value with a threshold value. When the measured value exceeds the threshold value, the control unit 4 determines that an abnormal state has occurred, and as a display element corresponding to the abnormal state, the fire alarm display element 5, the gas alarm display element 6, or CO The alarm display element 7 is turned on or blinked. At the same time, the control unit 4 issues a message corresponding to the abnormal state from the speaker 11. For example, in the case of a gas leak, the gas alarm display element (red LED) 6 is turned on and a voice message “Does the gas leak?” Is repeatedly called from the speaker 11.

The gas fire alarm device 100 is provided with a storage unit 12 composed of a nonvolatile memory or the like. The storage unit 12 includes a fire alarm display element 5, a gas alarm display element 6, or a CO alarm display when an abnormal state is detected by the fire detection unit 1, the gas detection unit 2, or the CO detection unit 3. An alarm history indicating that an alarm is issued by turning on the element 7 is stored. The alarm history stored in the storage unit 12 can be displayed on the display unit 10 as a ringing cause display after the alarm is issued or after the alarm is stopped. An administrator (a gas supplier or the like) can use the ringing cause display as reference information when performing restoration work or the like.
Here, the history confirmation operation for the administrator or the like to confirm the past state including the cause of the sounding of the gas fire alarm device 100 is performed by temporarily pulling the gas fire alarm device 100 by an operation such as the administrator pulling out the power plug 13. It is executed by disconnecting from the power supply 8 and reconnecting to the power supply 8. A specific method of history confirmation will be described later.

The control unit 4 also includes a gas fire alarm device including a fire detection unit 1, a gas detection unit 2, a CO detection unit 3, and a display unit 10 when the gas fire alarm device 100 is connected to the power supply 8. A circuit check for checking the soundness of 100 circuits is executed at predetermined intervals, and the result of this circuit check is also stored in the storage unit 12 as appropriate.
The result of the circuit check is displayed on the display unit 10 by executing the above-described power-off / connection operation. That is, in the present embodiment, the power source 8 disconnection / connection operation is a “circuit check confirmation operation”. Therefore, the “history confirmation operation” described above also serves as the “circuit check confirmation operation”.
Here, “history confirmation operation” and “circuit check confirmation operation” executed in the gas fire alarm device 100 of the first embodiment will be described in detail below.

  When the operator performs a disconnection / connection operation of the power supply 8, the gas fire alarm device 100 first executes the circuit check for a predetermined time (for example, 60 seconds). In this embodiment, this state is referred to as “circuit check mode”. The fact that the circuit check mode is being executed can be visually confirmed by the operator by the fact that the green LED as the power supply display element 9 repeats the blinking operation. When the circuit check mode is completed, the green LED is temporarily turned off, and immediately thereafter, sequential display is performed in which all the display elements are turned on in a predetermined order corresponding to the past state of the gas fire alarm device 100. As shown in (1) below, this sequential display is a display of a circuit check result indicating that the circuit is healthy when there is no alarm history in the storage unit 12. Further, as described in (2) to (4) below, when there is an alarm history in the storage unit 12, the alarm causes display and the circuit check result display are combined.

(1) When there is no alarm history In this case, the alarm device 100 has not lit any alarm display elements in the past, and only the power display element (green LED) 9 has been lit. Therefore, the display unit 10 displays a power check element (green LED) 9, a CO alarm display element (yellow LED) 7, a gas alarm display element (red LED) 6, a fire alarm display element (red LED) as a circuit check result display. ) In order of 5, each display element is sequentially turned on once.
(2) When there is a CO alarm history In this case, the alarm device 100 lights the CO alarm display element (yellow LED) 7 in the past. Accordingly, the display unit 10 displays each of the CO alarm display element (yellow LED) 7, the gas alarm display element (red LED) 6, the fire alarm display element (red LED) 5, and the power supply display element (green LED) 9 in this order. The elements are sequentially turned on once.
(3) When there is a gas leak alarm history In this case, the alarm device 100 has turned on the gas alarm display element (red LED) 6 in the past. Accordingly, the display unit 10 displays each of the gas alarm display element (red LED) 6, the fire alarm display element (red LED) 5, the power supply display element (green LED) 9, and the CO alarm display element (yellow LED) 7 in this order. The elements are sequentially turned on once.
(4) When there is a fire alarm history In this case, the alarm device 100 has turned on the fire alarm display element (red LED) 5 in the past. Therefore, the display unit 10 displays each of the fire alarm display element (red LED) 5, the power supply display element (green LED) 9, the CO alarm display element (yellow LED) 7, and the gas alarm display element (red LED) 6 in this order. The elements are sequentially turned on once.

As described above, the display unit 10 displays, as the ringing cause display, [1] power display element (green LED) 9, [2] CO alarm display element (yellow LED) 7, and [3] gas alarm display element (red LED). ) 6, [4] The order of the fire alarm display element (red LED) 5 is a basic cycle, and the display elements are arranged in the order of the basic cycle, starting from the display element corresponding to the past state of the gas fire alarm device 100. Sequential display is executed only for one cycle that is lit once. Therefore, when the sequential display of one cycle is completed, it can be confirmed that the circuit check result in the gas fire alarm device 100 is normal. At that time, the gas fire alarm device 100 indicates to the operator that the function is normal, and for example, a sound “normal” is played from the speaker 11.
On the other hand, if it is found in the circuit check that an abnormality such as a failure has occurred in the gas fire alarm device 100, the display unit 10 is caused to execute a different display pattern (for example, green LED fast blinking display). In addition to notifying the operator, a voice saying “A failure has occurred” is played from the speaker 11 as necessary.

  Further, when performing the ringing cause display, instead of the above “lighting”, sequential display may be executed in such a manner that all the display elements “blink” in a predetermined order corresponding to the past state. .

  As an example of the display unit 10 that performs sequential display according to the present embodiment, FIG. 3 shows a state change chart of the gas fire alarm device 100 when “there is no alarm history” in (1) above. FIG. 4 shows a state change chart of the gas fire alarm device 100 when “when there is a gas leak alarm history” in (3) above. Here, in FIG. 3, the gas leak alarm has not been issued in the past, and in FIG. 4, the gas leak alarm has been issued in the past. On the other hand, with respect to the power source, FIG. 3 shows that the connection state is maintained after being initially connected, and FIG. 4 shows that the connection state is once disconnected and then connected again. Therefore, FIG. 3 corresponds to the initial startup, and FIG. 4 corresponds to the restart by the operator.

  As described above, by performing sequential display on the display unit 10 of the gas fire alarm device 100, the ringing cause display for the operator to recognize the alarm history and the display indicating that the circuit check result is normal are It is assumed that a predetermined operation is always performed. For this reason, the operator can understand the ringing cause display as one of the operations normally performed by the alarm device, and the alarm device has a discomfort, suspicion, anxiety, etc. Absent.

  The ringing cause display described above is a sequential display in which all the display elements are lit in a predetermined order corresponding to the past state. Therefore, if there is an alarm history in the alarm device, the operator Or the administrator can grasp | ascertain easily and correctly the alert alerted in the past.

  Furthermore, the operation performed by the operator for the gas fire alarm device 100 can be simplified by combining the history check operation and the circuit check check operation as in the present embodiment. In addition, since the operator can confirm that the circuit is healthy as the sequential display is executed on the display unit 10, it is easy to visually recognize the result of the circuit check.

  When the sequential display (including the ringing cause display) on the display unit 10 ends, the gas fire alarm device 100 shifts to a normal detection mode in which an abnormal state can be detected. Thereafter, when a new abnormal state is detected by the fire detection unit 1, the gas detection unit 2, or the CO detection unit 3, the CO alarm display element (yellow LED) 7, the gas alarm display element (red LED) 6, or An alarm corresponding to the abnormal state is issued by the lighting by the fire alarm display element (red LED) 5 and the sound from the speaker 11, and this record is stored in the storage unit 12 as the latest alarm history.

[Second Embodiment]
FIG. 5 is a plan view showing a wall-mounted gas fire alarm device 200 according to the second embodiment, which is an example of a product of the alarm device of the present invention. FIG. 6 is a block diagram showing the configuration of the gas fire alarm device 200 according to the second embodiment.
In the present embodiment, the same components as those in the gas fire alarm device 100 according to the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  The gas fire alarm device 200 of the present embodiment is different from the gas fire alarm device 100 of the first embodiment in that the history confirmation switch 14 is provided, but the other components are the same. Also in this embodiment, the “history confirmation operation” also serves as the “circuit check confirmation operation”.

  In general, once the power plug 13 is connected to the power supply 8 in the gas fire alarm device 200, it is considered that the user rarely disconnects the power supply to the gas fire alarm device 200 by pulling out the power plug 13. Therefore, in view of the normal handling of such a gas fire alarm device 200, the gas fire alarm device 200 of this embodiment is assumed to be always connected to a power supply, and a history check switch for history check is used. 14 is provided. Thus, unlike the gas fire alarm device 100 in the first embodiment, the operator does not need to execute the disconnection / connection operation of the power supply 8 as the history confirmation operation, and the history confirmation switch 14 is set when confirming the history. Just press it.

  Here, “history confirmation operation” and “circuit check confirmation operation” executed in the gas fire alarm device 200 of the second embodiment will be described in detail below.

When the operator presses the history confirmation switch 14, the gas fire alarm device 200 immediately executes sequential display in which all display elements are lit in a predetermined order corresponding to the past state of the gas fire alarm device 200. This sequential display is a display of a circuit check result indicating that the circuit is healthy when there is no alarm history in the storage unit 12. Further, when an alarm history exists in the storage unit 12, the alarm causes display and the circuit check result display are combined.
The reason why the sequential display is immediately executed in the present embodiment is that the gas fire alarm device 200 performs a circuit check for checking the soundness of the circuit at predetermined intervals, and the result of this circuit check is stored together with the alarm history in the storage unit 12. This is because the latest stored data can be used. Accordingly, when the operator performs a history confirmation operation by pressing the history confirmation switch 14, the control unit 4 immediately and sequentially performs the display unit 10 on the basis of the latest circuit check result stored in the storage unit 12. The display can be executed. As described above, in the gas fire alarm device 200 according to the present embodiment, the time required for the history confirmation and the result confirmation of the circuit check can be minimized.

  In the gas fire alarm device 200 of the present embodiment, the lighting order of each display element in the display unit 10 is “(1) When there is no alarm history, (2) When there is a CO alarm history, as described in the first embodiment. This is the same as (3) When there is a gas leak alarm history and (4) When there is a fire alarm history.

That is, the display unit 10 displays, as a ringing cause display, [1] power display element (green LED) 9, [2] CO alarm display element (yellow LED) 7, [3] gas alarm display element (red LED) 6, [4] The order of the fire alarm display element (red LED) 5 is a basic cycle, and the display elements corresponding to the past state of the gas fire alarm device 100 are started, and each display element is turned on once in the order of the basic cycle. Sequential display is executed only for one cycle to be lit. When the sequential display of one cycle is completed, it can be confirmed that the circuit check result in the gas fire alarm device 200 is normal.
On the other hand, when it is found in the circuit check that an abnormality such as a failure has occurred in the gas fire alarm device 100, the display unit 10 is caused to execute a different display pattern (for example, green LED fast blinking display).
Also in the present embodiment, it is possible to appropriately play a sound from the speaker 11 simultaneously with the display by the display unit 10.

  As an example of the display unit 10 that performs sequential display according to the present embodiment, FIG. 7 shows a state change chart of the gas fire alarm device 200 in (1) “when there is no alarm history”. FIG. 8 shows a state change chart of the gas fire alarm device 200 in (3) “When there is a gas leak alarm history”. Here, in FIG. 7, the gas leak alarm has not been issued in the past, and in FIG. 8, the gas leak alarm has been issued in the past. On the other hand, regarding the power source, both FIG. 7 and FIG. 8 are left in the connected state.

  As described above, it is assumed that the display such as the ringing cause display in which the operator recognizes the alarm history always performs a predetermined operation by performing sequential display on the display unit 10 of the gas fire alarm device 200. It has become. For this reason, the operator can understand the ringing cause display as one of the operations normally performed by the alarm device, and the alarm device has a discomfort, suspicion, anxiety, etc. Absent.

  The ringing cause display described above is a sequential display in which all the display elements are lit in a predetermined order corresponding to the past state. Therefore, if there is an alarm history in the alarm device, the operator Or the administrator can grasp | ascertain easily and correctly the alert alerted in the past.

  Furthermore, the operation performed by the operator for the gas fire alarm device 200 can be simplified by combining the history check operation and the circuit check check operation as in the present embodiment. In addition, since the operator can confirm that the circuit is healthy as the sequential display is executed on the display unit 10, it is easy to visually recognize the result of the circuit check.

  When the sequential display (including ringing cause display) on the display unit 10 ends, the gas fire alarm device 200 shifts to a normal detection mode in which an abnormal state can be detected. Thereafter, when a new abnormal state is detected by the fire detection unit 1, the gas detection unit 2, or the CO detection unit 3, the CO alarm display element (yellow LED) 7, the gas alarm display element (red LED) 6, or An alarm corresponding to the abnormal state is issued by the lighting by the fire alarm display element (red LED) 5 and the sound from the speaker 11, and this record is stored in the storage unit 12 as the latest alarm history.

[Third Embodiment]
In the first embodiment and the second embodiment, the combined gas fire alarm device 100 capable of detecting “fire occurrence”, “gas leak”, and “carbon monoxide (CO) occurrence” as abnormal states. However, the present invention can be applied to a gas alarm device capable of detecting “gas leakage” and “carbon monoxide (CO) generation”.

  FIG. 9 is a plan view showing a ceiling-mounted gas alarm device 300 according to the third embodiment, which is an example of the alarm device according to the present invention. The gas alarm device 300 of this embodiment is substantially the same as that of the gas fire alarm device 200 of the second embodiment, except that the function relating to fire alarm is omitted. Therefore, in FIG. 6, the configuration excluding the fire detection unit 1 and the fire alarm display element 5 corresponds to a block diagram showing the configuration of the gas alarm device 300.

  The gas alarm device 300 of this embodiment is provided with a button 20. The operator can normally switch the onomatopoeia or confirm the alarm sound by pressing the button 20 once for a short time. On the other hand, when the operator performs a different operation on the button 20 (for example, pressing and holding the button 20), the alarm history and circuit check result of the gas alarm measure 300 may be confirmed as in the second embodiment. it can.

  In the gas alarm device 300 of the present embodiment, as the ringing cause display, since the sequential display in which all the display elements are lit in a predetermined order corresponding to the past state is executed, the operator can display the ringing cause display by the alarm device. It can be understood as one of the operations that are normally performed, and the alarm device does not have an uncomfortable feeling, a suspicious feeling, an uneasy feeling, or the like as in the prior art.

  The ringing cause display described above is a sequential display in which all the display elements are lit in a predetermined order corresponding to the past state. Therefore, if there is an alarm history in the alarm device, the operator Or the administrator can grasp | ascertain easily and correctly the alert alerted in the past.

  Furthermore, also in the present embodiment, the history check operation and the circuit check check operation can be used in common, as in the first and second embodiments. In this case, the operation performed by the operator on the gas alarm device 300 can be simplified. In addition, since the operator can confirm that the circuit is healthy by the sequential display being executed on the display unit 10, it is easy to visually recognize the result of the circuit check.

The top view which shows the wall-hanging type gas fire alarm apparatus by 1st Embodiment The block diagram which shows the structure of the gas fire alarm apparatus by 1st Embodiment. State change chart of gas fire alarm device in “no alarm history” according to the first embodiment State change chart of gas fire alarm device in “when there is a gas leak alarm history” according to the first embodiment The top view which shows the wall hanging type gas fire alarm device by 2nd Embodiment The block diagram which shows the structure of the gas fire alarm apparatus by 2nd Embodiment. State change chart of gas fire alarm device in “no alarm history” according to the second embodiment State change chart of gas fire alarm device in “when there is a gas leak alarm history” according to the second embodiment The top view which shows the gas alarm device of the ceiling mounting type by 3rd Embodiment

Explanation of symbols

1 Fire detection part (detection part)
2 Gas detector (detector)
3 CO detector (detector)
4 Control unit 5 Fire alarm display element (alarm display element)
6 Gas alarm display element (alarm display element)
7 CO alarm display element (alarm display element)
9 Power Display Element 10 Display Unit 11 Speaker 12 Storage Unit 100 Gas Fire Alarm Device (Alarm Device)
200 Gas fire alarm device (alarm device)
300 Gas alarm device (alarm device)

Claims (9)

An alarm device that detects a plurality of abnormal states and issues an alarm,
A detection unit for individually detecting the plurality of abnormal states;
A plurality of alarm display elements that are turned on or flashing in response to the plurality of abnormal states, and a display unit that has a power supply display element that is turned on or flashing in response to an energized state;
A control unit for displaying the detection result on the display unit based on the detection result of the detection unit;
When a history confirmation operation for confirming a past state is performed, the control unit performs sequential display in which all display elements are lit or blinked in a predetermined order corresponding to the past state. An alarm device for controlling the display unit.   2. The alarm device according to claim 1, wherein the past state includes a plurality of abnormal states and a normal state in which the plurality of abnormal states are not detected.   3. The alarm device according to claim 1, wherein the sequential display is executed with an alarm display element corresponding to an abnormal state detected by the detection unit most recently as a head. 4. The control unit performs a circuit check for checking the soundness of a circuit including the detection unit and the display unit at a predetermined interval,
The history confirmation operation is also used as a circuit check confirmation operation for confirming the result of the circuit check,
The alarm device according to any one of claims 1 to 3, wherein the sequential display is executed, whereby the circuit is confirmed to be healthy.   When the history check operation is executed, the sequential display is performed based on the result of the circuit check that is first executed by the control unit after the circuit check check operation that is executed along with the history check operation. The alarm device according to claim 4, which is executed. A storage unit for storing a result of the circuit check executed at the predetermined interval;
The alarm device according to claim 4, wherein when the history check operation is executed, the sequential display is executed based on a latest circuit check result stored in the storage unit.   The alarm device according to any one of claims 4 to 6, further comprising a speaker for notifying by voice that the circuit is healthy when the sequential display is executed.   The alarm device according to any one of claims 1 to 7, wherein the detection unit includes two or more of a fire detection unit, a gas detection unit, and a CO detection unit. A control method for an alarm device that detects a plurality of abnormal states and issues an alarm,
The alarm device is
A detection unit for individually detecting the plurality of abnormal states;
A plurality of alarm display elements that are turned on or flashing in response to the plurality of abnormal states, and a display unit having a power supply display element that is turned on or flashing in response to an energized state,
A control method for an alarm device that performs sequential display in which all display elements are lit or blinked in a predetermined order corresponding to the past state in response to a history confirmation operation for confirming a past state.

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